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Question 6485
NEET Physics · Medium

Mechanical Properties of Fluids: Surface Tension MCQ

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Surface TensionMediumQuestion 6485

Question

Excess pressure inside a soap bubble of radius r (surface tension T):
  1. A
    2T/r
  2. B
    4T/r
    Correct
  3. C
    T/r
  4. D
    T/2r

Correct answer

4T/r

Explanation

Soap bubble has two surfaces. Excess pressure = 4T/r.

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